Harbor Freight Tools 92174 User Manual

TRAILER WITH TAILGATE  
(1,560 LB. WEIGHT CAPACITY)  
Model 92174  
AssEMBLY And OPERATIOn InsTRuCTIOns  
WARnInG!  
IMPORTAnT InFORMATIOn  
This trailer’s Hitch Coupler MUST be properly secured to the hitch ball of the towing vehicle. After assembly and  
attachment, pull up and down on the Hitch Coupler to make sure the hitch ball is fitting snugly in the Hitch Coupler.  
There must be no play between the hitch ball and Hitch Coupler. If there is play, tighten the Adjustment Nut  
until no play is present. If the Adjustment Nut is too tight, the Handle will not lock. Carefully read and follow the  
complete instructions in this manual BEFORE setup or use.  
If the Coupler is not secured properly, the ball could come loose while the trailer is in motion, possibly caus-  
ing property damage, sERIOus PERsOnAL InJuRY, or dEATH.  
Due to continuing improvements, actual product may differ slightly from the product described herein.  
®
3491 Mission Oaks Blvd., Camarillo, CA 93011  
TO PREVEnT sERIOus InJuRY, REAd And undERsTAnd  
ALL WARnInGs And InsTRuCTIOns BEFORE usE.  
Copyright© 2004, 2007 by Harbor Freight Tools®. All rights reserved. No portion of  
this manual or any artwork contained herein may be reproduced in any shape or  
form without the express written consent of Harbor Freight Tools.  
For technical questions or replacement parts, please call 1-800-444-3353.  
Manual revised 07e  
sPECIFICATIOns  
Maximum Weight Capacity  
Maximum Towing Speed  
Overall Dimensions  
1,560 Pounds  
45 MPH  
112” L x 61-5/8” W x 26” H  
71-5/8” L x 49” W  
30-3/8” L x 43-1/4” W  
Main Frame Dimensions  
Tailgate Dimensions  
Ground Clearance Dimensions  
7-1/4” From Ground to Axle  
Qty: 2 / DOT Approved  
Tires  
Maximum Permissible Inflation Pressure: 60 PSI  
Size: 4.80-12  
Hitch Type  
Class II  
Hitch Dimensions  
Tongue Dimensions  
Ball Size  
9-3/8” L x 2-3/4”~3-3/4” W x 2”~4-1/2” H x 1/8” Thick  
2” Square  
2”  
Light Voltage Requirements  
Weight  
12 Volts DC  
246.5 Pounds  
unPACKInG  
When unpacking, make sure all the parts and hardware shown on the Parts List/  
Hardware List are included. If any parts are missing or broken, please call Harbor Freight  
Tools at the number shown on the cover of this manual as soon as possible.  
save This Manual  
You will need this manual for the safety warnings and precautions, assembly, oper-  
ating, inspection, maintenance and cleaning procedures, parts list and assembly diagram.  
Keep your invoice with this manual. Write the invoice number on the inside of the front  
cover. Keep this manual and invoice in a safe and dry place for future reference.  
GEnERAL sAFETY RuLEs  
IMPORTAnT sAFETY InsTRuCTIOns  
WARnInG!  
Read and adhere to the following instructions. Failure to read and obey all of  
the following instructions COMPLETELY will void the warranty and can result in  
damage to the Trailer, property damage, or sERIOus PERsOnAL InJuRY.  
sAVE THEsE InsTRuCTIOns.  
REV 05k, 07h  
SKU 92174  
For technical questions, please call 1-800-444-3353.  
Page 3  
Work Area  
1.  
2.  
3.  
Keep work area clean and dry. Cluttered, damp, or wet work areas invite inju-  
ries.  
Keep children away from work area. Do not allow children to play in, climb on  
or ride in this product.  
store idle equipment. When not in use, tools and equipment should be stored in  
a dry location to inhibit rust. Always lock up tools and equipment, and keep out of  
reach of children.  
4.  
5.  
6.  
do not use this product if under the inuence of alcohol or drugs. Read warn-  
ing labels on prescriptions to determine if your judgement or reflexes are impaired  
while taking drugs. If there is any doubt, do not attempt to use this product.  
use eye protection. Wear ANSI-approved safety impact eye goggles when as-  
sembling this product. ANSI-approved safety impact eye goggles are available from  
Harbor Freight Tools.  
dress safely. Do not wear loose clothing or jewelry, as they can become caught  
in moving parts. Wear a protective hair covering to prevent long hair from becom-  
ing caught in moving parts. If wearing a long-sleeve shirt, roll sleeves up above  
elbows.  
7.  
do not overreach. Keep proper footing and balance at all times to prevent tripping,  
falling, back injury, etc.  
8.  
9.  
Industrial applications must follow OsHA requirements.  
stay alert. Watch what you are doing at all times. Use common sense. Do not  
use this product when you are tired or distracted from the job at hand.  
Equipment use and Care  
1.  
2.  
Check for damaged parts. Before using this product, carefully check that it will  
operate properly and perform its intended function. Check for damaged parts and  
any other conditions that may affect the operation of this product. Replace or repair  
damaged or worn parts immediately.  
Replacement parts and accessories:When servicing, use only identical  
replacement parts. Only use accessories intended for use with this product. Ap-  
proved accessories are available from Harbor Freight Tools.  
3.  
4.  
Maintain this product with care. Keep this product clean and dry for better and  
safer performance.  
Maintenance: For your safety, service and maintenance should be performed  
regularly by a qualified technician.  
SKU 92174  
For technical questions, please call 1-800-444-3353.  
Page 4  
5.  
use the right equipment for the job. Do not attempt to force small equipment to  
do the work of larger industrial equipment. There are certain applications for which  
this product was designed. It will do the job better and more safely at the capacity  
for which it was intended. Do not modify this product, and do not use this product  
for a purpose for which it was not intended.  
service  
1.  
2.  
Equipment service must be performed only by qualified repair personnel.  
Service or maintenance performed by unqualified personnel could result in a risk  
of injury.  
When servicing equipment, use only identical replacement parts. Follow  
instructions in the “Inspection, Maintenance, and Cleaning” section of this  
manual. Use of unauthorized parts or failure to follow maintenance instructions  
may create a risk of personal injury.  
sPECIFIC PROduCT WARnInGs And PRECAuTIOns  
1.  
2.  
To avoid personal injury and/or property damage, do not exceed the Trailer’s  
maximum weight capacity of 1,560 pounds.  
Before each use, always examine the Trailer for proper Tire air pressure (60  
PsI), damaged tail lights, damaged side running lights, loose bolts and nuts,  
structural cracks and bends, and any other condition that may affect its safe  
operation. Do not use the Trailer even if minor damage appears.  
3.  
4.  
never allow adults, children, or pets to ride in or play on the Trailer.  
Before each use, always attach the safety Chain of the Trailer to the towing  
vehicle. Make sure the Safety Chain is attached to the towing vehicle with the same  
length for each side. Do not allow the Safety Chain to drag on the ground.  
5.  
6.  
Always check to make sure the payload being transported is properly and  
safely secured in the Trailer. Load the Trailer evenly from side to side with 60%  
of the load forward of the Axle.  
Prior to using theTrailer,make sure to read and understand all instructions and  
safety precautions as outlined in the owner’s manual for the towing vehicle.  
Make sure the towing vehicle is capable of towing the Trailer and its payload. Make  
sure the hitch on the towing vehicle is capable of towing the Trailer and its payload.  
The towing capacity of the hitch is typically stamped on the hitch drawbar.  
7.  
Make sure the Coupler and the vehicle’s ball hitch (not included) are of equal  
mating size (2”) and are rated equal to or greater than the weight of theTrailer  
and its payload.  
SKU 92174  
For technical questions, please call 1-800-444-3353.  
Page 5  
8.  
9.  
do not exceed 45 miles per hour when towing the Trailer. Excess speed is a  
major cause of vehicle-trailer accidents. Poor road conditions, such as uneven, wet,  
or unstable surfaces, will create further hazards if driven on too quickly. Reduce  
speed to a safe level when driving in poor driving situations.  
The Tail Light Bulbs supplied with this Trailer are for a 12 volt dC electrical  
system only. Do not attempt to power the Light Bulbs with any other type or volt-  
age electrical current.  
10.  
11.  
Whenever possible, park theTrailer on a flat, level, paved, surface and chock  
both Tires to keep the Trailer from accidently moving.  
CAuTIOn! Care must be taken when backing up theTrailer. Only back up  
the Trailer on a straight path. If the Trailer is allowed to turn off the straight path  
while backing up, the Trailer could jackknife, causing severe damage to the Trailer  
and towing vehicle.  
12.  
13.  
Maintain labels and nameplates on theTrailer. These carry important informa-  
tion. If unreadable or missing, contact Harbor Freight Tools for a replacement.  
Reporting safety defects: If you believe yourTrailer has a defect which could  
cause a crash or could cause injury or death, you should immediately inform  
the national Highway Traffic safety Administration (nHTsA) in addition to  
notifying the manufacturer, Changzhou nanxiashu Tool Company. If NHTSA  
receives similar complaints, it may open an investigation, and if it finds that a safety  
defect exists in a group of vehicles, it may order a recall and remedy campaign.  
However, NHTSA cannot become involved in individual problems between you, Har-  
bor Freight Tools, or the manufacturer. To contact NHTSA, you may either call the  
Auto Safety Hotline toll-free at 1-800-424-9393 or 202-366-0123 or write NHTSA,  
U.S. Department, 400 7th Street SW NSA-11, Washington, D.C. 20590. You may  
also obtain other information about motor vehicle safety from the Hotline.  
14.  
15.  
Trailer licensing notice: some states may consider this Trailer a vehicle re-  
quiring registration, licensing, and titling. Check with your State Department  
of Motor Vehicles for information and guidance on registering, licensing, and titling  
the Trailer.  
WARnInG: The warnings, precautions, and instructions discussed in this  
manual cannot cover all possible conditions and situations that may occur.  
The operator must understand that common sense and caution are factors, which  
cannot be built into this product, but must be supplied by the operator.  
sAVE THEsE InsTRuCTIOns  
SKU 92174  
For technical questions, please call 1-800-444-3353.  
Page 6  
AssEMBLY InsTRuCTIOns  
note: For additional references to the parts listed on the following pages, refer to the As-  
sembly diagram.  
A1  
2
A20  
2
6
A21  
A2  
2
2
1
A9  
A13  
2
A20  
8
FIGuRE A  
1.  
2.  
Attach the Tow Bar (A2) to the underside of the frame assembly, using two Bolts  
(1), Lock Nuts (1), and Washers (1). (see Figure A.)  
Attach the ends of two Side Rails (A20) to the front end of the Trailer Frame (A1),  
using four Bolts (2), Lock Nuts (2), and Washers (2). Then attach the remaining two  
ends of the Side Rails to the Tow Bar (A2), using the “T” Plate (A21), four Bolts (2),  
Lock Nuts (2), and Washers (2). Secure the Center with one Bolt (6), Lock Nut (6),  
and Washer (6). (see Figure A.)  
BOLT  
(8)  
TOW BAR  
(A2)  
3.  
4.  
Slide the Hitch Coupler (A9) onto the  
end of the Tow Bar (A2), and align  
the two mounting holes of the Hitch  
Coupler with the two side mounting  
holes of the Tow Bar.  
(see Figures A and B.)  
HITCH  
COuPLER  
(A9)  
Locate the center link in the Safety  
Chain (A13), and place the center  
link inside the end of the Tow Bar  
(A2). Insert a Bolt (8) horizontally  
through the side/forward mount-  
ing hole of the Hitch Coupler (A9),  
sAFETY CHAIn  
(A13)  
FIGuRE B  
REV 05k, 06b, 07e  
SKU 92174  
For technical questions, please call 1-800-444-3353.  
Page 7  
through the center link in the Safety Chain, and through the Tow Bar. Firmly tighten  
a Lock Nut (8) onto the Bolt (8) to secure the Safety Chain to the Tow Bar. Insert  
another Bolt (8) through the side/rear mounting holes of the Hitch Coupler and Tow  
Bar and secure with a Lock Nut (8). (see Figures A and B.)  
5.  
With assistance, turn the Frame and Tow Bar assembly upside down.  
u-BOLT (3)  
TRAILER  
FRAME  
AXLE (A6)  
(A1)  
COTTER  
PIn (7)  
TRAILER  
sPRInG (A8)  
nuT (7)  
COTTER  
PIn (7)  
nuT  
(7)  
BOLT (7)  
sPRInG PLATE  
(3)  
sPRInG  
HAnGER  
BOLT (7)  
LOCK nuT And  
WAsHER (3)  
FIGuRE C  
6.  
7.  
Place the two Trailer Springs (A8) in the spring hangers located on the underside of  
the Trailer Frame (A1). Secure each Trailer Spring to the Trailer Frame, using two  
Bolts (7), two Nuts (7), and two Cotter Pins (7). (see Figure C.)  
Place the Axle (A6) on top of the Trailer Springs (A8). Position a Spring Plate (3)  
under each Trailer Spring. Place two U-Bolts (3) over each end of the Axle and  
through each Spring Plate. Then secure the Axle to the Spring assembly, using four  
Lock Nuts (3) and Spring Washers (3) for each end of the Axle. (see Figure C.)  
REV 06b, 07e  
SKU 92174  
For technical questions, please call 1-800-444-3353.  
Page 8  
8.  
WARnInG! If the following procedure is not followed, it may result in wheel  
locking and tire blowout, causing an automobile accident or road hazard.  
Whenever a Hub (A7) on a new unit requires assembly (or a Hub is disassembled  
for maintenance), the following procedures MUST be followed:  
a. Using a suitable solvent, thoroughly clean the Bearings (A7), Seal (A7), Cap  
(A7), and the rest of the parts of the Hub assembly of all grease, dirt, metal  
shavings, or any other foreign object. The parts must be cleaned even if they  
are new or appear clean.  
b. Allow all parts to dry completely.  
c. Make sure your hands are clean and the bearing packer (not included) is also  
clean.  
d. Place fresh, clean bearing grease in the bearing packer.  
e. With the grease-filled bearing packer in one hand and the Bearing (A7) in the  
other, press the Bearing into the grease, forcing the grease inside the slots in  
the Bearing. Continue doing this until every slot in the Bearing is completely  
full of grease.  
9.  
As you nish assembling the Hub, be careful not to get any dirt or debris on  
any part of the assembly.  
COTTER PIn (A7)  
AXLE (A6)  
LuG nuT  
GREAsE FITTInG  
(A7)  
(LuBRICATE EVERY 90 dAYs)  
LuG nuT (A7)  
HuB (A7)  
BEARInGs (A7)  
FLAT WAsHER (A7)  
TIRE & RIM (A10)  
CAsTLE nuT (A7)  
CAP (A7)  
FIGuRE d  
10.  
Carefully slide the Hubs (A7) over the Spindles at each end of the Axle (A6). Insert  
the Bearings (A7) and the Flat Washer (A7) on the Spindles. Screw a Castle Nut  
SKU 92174  
For technical questions, please call 1-800-444-3353.  
Page 9  
(A7) tightly onto each Spindle. Then back the Castle Nuts off slightly so that the  
Hubs can just move freely. (see Figure d, above.)  
11.  
12.  
13.  
Insert a Cotter Pin (A7) through the hole at the end of each Spindle of the Axle (A6)  
and spread the Cotter pin. (see Figure d.)  
Fill the Caps (A7) with bearing grease. Then, press each Cap onto the Hubs (A7).  
(see Figure d.)  
With assistance, turn the Trailer over so that it is facing correct side up.  
sIdE  
RunnInG LIGHT  
(A19)  
LEFT TAIL LIGHT  
(A15)  
BOLT (2)  
FEndER (A11)  
FEndER  
suPPORT BAR  
(A14)  
RIGHT TAIL LIGHT  
(A16)  
TAIL LIGHT  
BRACKET  
(A18)  
BOLT  
(2)  
BOLT (2)  
FIGuRE E  
14.  
Attach theTail Light Brackets (A18) to the right/rear and left/rear of theTrailer Frame  
(A1), using two Bolts (2), Lock Nuts (2), and Washers (2) for each Tail Light Bracket.  
(see Figure E.)  
15.  
16.  
Attach the Right Tail Light (A16) to the right side Tail Light Bracket (A18), using the  
two Nuts that are factory pre-attached to the Right Tail Light. (see Figure E.)  
Attach the License Plate Bracket (A17) and Left Tail Light (A15) to the left side Tail  
Light Bracket (A18), using the two Nuts that are factory pre-attached to the Left Tail  
Light. (see Figure E.)  
17.  
Remove the Lens from a Side Running Light (A19). Insert theWire Lead of the Side  
Running Light through the center hole in the right/forward side of the Trailer Frame  
(A1). Attach the Side Running Light to the Trailer Frame, using the two accessory  
Self Tapping Screws. Then, reattach the Lens to the Side Running Light. Repeat  
this procedure for the remaining Side Running Light on the left/forward side of the  
Trailer Frame. (see Figure E.)  
SKU 92174  
For technical questions, please call 1-800-444-3353.  
Page 10  
18.  
19.  
Attach a Fender (A11) to the right/middle section of the Trailer Frame (A1) and left/  
middle section of the Trailer Frame, using one Fender Support Bar (A14), two Bolts  
(2), Lock Nuts (2), and Washers (2) for each Fender. (see Figure E.)  
Place a Tire w/Rim (A10) on each Hub (A7). Secure the Tire w/Rims to the Hubs,  
using four Lug Nuts (A7) per Tire. nOTE: Make sure to tighten (torque) the Lug  
Nuts to at least 90 ft-lb. (see Figure d, page 9.)  
TRAILER EnCLOsuRE  
(A12)  
suPPORT BAR  
(A3)  
REAR  
CORnER  
BRACE  
(A4)  
usE  
BOLTs (2)  
nuTs (2)  
REAR  
CORnER  
BRACE  
(A4)  
COTTER  
PIn (5)  
REAR RAMP  
(A5)  
TRAILER FRAME  
(A1)  
PIn (4)  
FIGuRE F  
20.  
21.  
To attach theTrailer Enclosure (A12) to theTrailer Frame (A1), attach the lower portion  
of the eight Support Bars (A3) to the front, left, and right sides of the Trailer Frame,  
using one Bolt (2), Lock Nut (2), and Washer (2) for each Support Bar. Attach the  
Trailer Enclosure to the top portion of each of the eight Support Bars. Attach the  
lower portion of a Rear Corner Brace (A4) to the left/rear and right/ rear corners  
of the Trailer Frame. Then, attach the Trailer Enclosure to the top portion of both  
Corner Braces. (see Figure F.)  
To install the Rear Ramp (A5), insert the two Inner Hinges located at the bottom  
of the Rear Ramp into the two Outer Hinge Slots located at the rear of the Trailer  
Frame (A1). Insert the two Pins (4) through the two Outer Hinge Slots and Inner  
Hinges. Then secure the Pins in place with the two Cotter Pins (5).  
(see Figures F and G.)  
REV 05c  
SKU 92174  
For technical questions, please call 1-800-444-3353.  
Page 11  
PIn LOCK  
PIn LOCK  
PIn (4)  
PIn (4)  
TRAILER FRAME (A1)  
InnER HInGE &  
OuTER HInGE sLOT  
InnER HInGE &  
OuTER HInGE sLOT  
COTTER  
PIn (5)  
COTTER  
PIn (5)  
FIGuRE G  
22.  
Raise the Rear Ramp (A5) to its up position. Then, lock the Rear Ramp in place  
with the two Pin Locks. (see Figure G.)  
REV 05c  
SKU 92174  
For technical questions, please call 1-800-444-3353.  
Page 12  
WHITE (GROund)  
WIRE CLIP  
GREEn  
YELLOW  
WIRE FROM  
sIdE RunnInG  
LIGHT (A19)  
WIRE FROM  
sIdE RunnInG  
LIGHT (A19)  
BROWn  
BROWn  
RIGHT sIdE  
TRAILER FRAME  
(A1)  
LEFT sIdE  
TRAILER FRAME  
(A1)  
RIGHT  
LEFT  
TAIL LIGHT  
(A16)  
TAIL LIGHT  
(A15)  
BROWn  
YELLOW  
GREEn  
BROWn  
FIGuRE H  
23.  
24.  
25.  
To install the Wiring Harness on the Trailer, use an accessory Self Tapping Screw  
to attach the White Ground Wire located at the Plug end of the Wiring Harness to  
the small mounting hole in the Tow-bar (A2). (see Figure H.)  
Leave about 18” of wire beyond the Hitch Coupler (A9), and run the Wiring Harness  
along the inside of theTow-bar (A2) to the front of theTrailer Frame (A1). Then, split  
the Yellow/Brown Wires from the Green/Brown Wires. (see Figure H.)  
Run the Yellow/Brown Wires along the inside of the front of the Trailer Frame (A1)  
to the Side Running Light (A16) located on the left/forward side of the Trailer Frame.  
Then, run the Green/Brown Wires along the inside of the front of the Trailer Frame  
to the other Side Running Light located on the right/forward side of theTrailer Frame.  
(see Figure H.)  
26.  
27.  
Run the Green/Brown Wires to the Right Tail Light (A16). Strip the ends of the  
Wires about 3/4”. Connect the Green Wire to the Red Wire of the Right Tail Light.  
Then, connect the Brown Wire to the two Black Wires of the Right Tail Light.  
(see Figure G.)  
nOTE: It is recommended that only a qualified technician perform the electrical  
service that may be needed to enable your particular make/model vehicle to power  
the Trailer’s 12 volt DC lighting system.  
SKU 92174  
For technical questions, please call 1-800-444-3353.  
Page 13  
OPERATInG InsTRuCTIOns  
TRIGGER  
“R” PIn  
HAndLE  
sAFETY PIn  
AdJusTMEnT  
HITCH COuPLER  
(A9)  
nuT  
sAFETY  
CHAIn  
(A13)  
HITCH BALL  
(nOT InCLudEd)  
FIGuRE I  
1.  
2.  
3.  
4.  
Only use a 2” ball hitch (not included) on the towing vehicle.  
(see Figure I.)  
nOTE: To reduce friction between the hitch ball and Hitch Coupler (A9), apply a  
layer of heavy weight grease over the hitch ball. (see Figure I.)  
Temporarily remove the “R” Pin and Safety Pin. Then, pull up on the Trigger and lift  
up on the Handle. (see Figure I.)  
With assistance, place the Hitch Coupler (A9) over the vehicle’s hitch ball and push  
down on the Handle until the Trigger locks in the slot. Pull up and down on the  
Coupler to make sure the hitch ball is fitting snugly in the Coupler. There should be  
no play between the hitch ball and Coupler. If there is play, tighten the Adjustment  
Nut until no play is present. If the Adjustment Nut is too tight, the Handle will not  
lock. WARnInG! If the Hitch Coupler is not secured properly, the ball could  
come loose while theTrailer is in motion, possibly causing property damage,  
sERIOus PERsOnAL InJuRY OR dEATH. (see Figure I.)  
5.  
6.  
Make sure to attach each side of the Safety Chain (A13) equally to the towing  
vehicle’s rear bumper or frame. (see Figure I.)  
Connect the Tail Light Wiring Assembly to the towing vehicle’s 12 Volt DC system.  
nOTE: Make sure to consult the operator’s manual of the towing vehicle for  
proper connection instructions.  
7.  
CAuTIOn! Care must be taken when backing up theTrailer. Only back up  
the Trailer on a straight path. If the Trailer is allowed to turn off the straight path  
while backing up, the Trailer could jackknife, causing severe damage to the Trailer  
and to the towing vehicle.  
SKU 92174  
For technical questions, please call 1-800-444-3353.  
Page 14  
8.  
When towing the Trailer over long distances stop and check the tightness of all  
connections, Side Running Lights (A19), and Tail Lights (A15, A16) at least every  
100 miles.  
9.  
Carry emergency flares, and fire extinguisher, if required for operation in your  
state.  
10.  
It is recommended to carry extra bulbs and fuses if towing the Trailer at night over  
long distances.  
TIRE InFORMATIOn  
Tire Terminology Glossary  
• Accessory weight means- the combined weight of automatic transmission, power steering, power  
brakes, power windows, power seats, radio, and heater, to the extent that these items are available as  
factory-installed equipment.  
• Carcass means- the tire structure except for the tread which provides the major portion of the tire’s  
capability to deflect in response to the vertical loads and tractive forces that the tire transmits from the  
roadway to the non-pneumatic rim, the wheel center member, or the vehicle and which attaches to the  
vehicle or attaches, either integrally or separably, to the wheel center member or non-pneumatic rim.  
• Carcass separation means- the pulling away of the carcass from the non-pneumatic rim or wheel  
center member.  
• Chunking means- the breaking away of pieces of the carcass or tread.  
• Cracking means- any parting within the carcass, tread, or any components that connect the tire to the  
wheel center member.  
• Curb weight means- the weight of a motor vehicle with standard equipment including the maximum  
capacity of fuel, oil, and coolant, and, if so equipped, air conditioning and additional weight optional  
engine.  
• Load rating means- the maximum load a tire is rated to carry.  
• Maximum loaded vehicle weight means- the sum of:  
a.Curb weight;  
b.Accessory weight;  
c.Vehicle capacity weight; and  
d.Production options weight.  
• Maximum tire width means- the greater of either the linear distance between the exterior edges of the  
carcass or the linear distance between the exterior edges of the tread, both being measured parallel to  
the rolling axis of the tire.  
• normal occupant weight means- 68 kilograms times the number of occupants.  
• Occupant distribution means- distribution of occupants in a vehicle.  
REV 07e  
SKU 92174  
For technical questions, please call 1-800-444-3353.  
Page 15  
• Production options weight means- the combined weight of those installed regular production options  
weighing over 2.3 kilograms in excess of those standard items which they replace, not previously con-  
sidered in curb weight or accessory weight, including heavy duty brakes, ride levelers, roof rack, heavy  
duty battery, and special trim.  
• Tread means- that portion of the tire that comes in contact with the road.  
• Tread separation means- pulling away of the tread from the carcass.  
• Vehicle capacity weight means- the rated cargo and luggage load plus 68 kilograms times the vehicle’s  
designated seating capacity.  
• Vehicle maximum load on the tire means- that load on an individual tire that is determined by distribut-  
ing to each axle its share of the maximum loaded vehicle weight and dividing by two.  
• Vehicle normal load on the tire means- that load on an individual tire that is determined by distributing  
to each axle its share of the curb weight, accessory weight, and normal occupant weight and dividing  
by 2.  
Tire Markings  
Inner diameter  
in inches  
Load index and  
speed rating*  
European tire  
certificate*  
section width  
in inches  
u.s. dOT tire  
identification  
number  
Tire ply  
composition  
and materials  
used  
Maximum  
permissible  
inflation  
pressure  
Maximum  
load rating  
Trailer  
tire  
*Information not required by u.s. dOT  
• section width- This number gives the width of the tire in inches. The larger the number, the wider the  
tire. (The markings on the example tire diagram show 4.80. The markings on your tire may differ.)  
• Inner diameter- This number gives the inner diameter of the tire in inches. This is also the rim diameter  
in inches. (The markings on the example tire diagram show 12. The markings on your tire may differ.)  
• u.s. dOT tire identification number-This begins with the letters “DOTand indicates that the tire meets  
all federal standards. The next two numbers or letters are the plant code where it was manufactured, and  
the last four numbers represent the week and year that the tire was built. For example, the numbers 2107  
mean the 21st week of 2007. Any other numbers used are marketing codes used at the manufacturer’s  
discretion. This information is used to contact consumers if a tire defect requires a recall.  
• Maximum Load Rating- This number indicates the maximum load in kilograms and pounds that can  
be carried by the tire.  
REV 07e  
SKU 92174  
For technical questions, please call 1-800-444-3353.  
Page 16  
Load Index Rating Codes  
Code Pounds  
Code Pounds  
Code Pounds  
Code Pounds  
Code Pounds  
71  
72  
73  
74  
75  
76  
77  
78  
761  
783  
805  
827  
853  
882  
908  
937  
79  
80  
81  
82  
83  
84  
85  
86  
963  
87  
88  
89  
90  
91  
92  
93  
94  
1,201  
1,235  
1,279  
1,323  
1,356  
1,389  
1,433  
1,477  
95  
96  
1,521  
1,565  
1,609  
1,653  
1,709  
1,764  
1,819  
1,874  
103  
104  
105  
106  
107  
108  
109  
110  
1,929  
1,984  
2,039  
2,094  
2,149  
2,205  
2,271  
2,337  
992  
1,019  
1,047  
1,074  
1,102  
1,135  
1,168  
97  
98  
99  
100  
101  
102  
• Load index- This is a measurement of how much weight each tire can support. See chart above. (The  
markings on the example tire diagram show 71. The markings on your tire may differ.) Note:You may  
not find this information on all tires because it is not required by law.  
• speed Rating- The speed rating denotes the speed at  
which a tire is designed to be driven for extended periods  
of time. This does not indicate that the vehicle or rims  
can safely reach or maintain that speed. These ratings  
are listed to the right. (The markings on the example  
tire diagram show M. The markings on your tire may  
differ.) Note:You may not find this information on all tires  
because it is not required by law.  
Tire speed Rating Codes  
Code MPH Code MPH Code MPH  
F
G
J
50  
56  
62  
68  
75  
81  
N
P
Q
R
S
T
87  
94  
100  
106  
112  
118  
U
H
V
Z
W
Y
124  
130  
149  
149  
168  
186  
K
L
M
• Tire Ply Composition and Materials used- The number of plies indicates the number of layers of  
rubber-coated fabric in the tire. In general, the greater the number of plies, the more weight a tire can  
support. Tire manufacturers also must indicate the materials in the tire, which include steel, nylon,  
polyester, and others.  
• Maximum Permissible Inflation Pressure- This number is the greatest amount of air pressure that  
should ever be put in the tire under normal driving conditions.  
Tire Inflation and Load Limit  
Tire and Loading Information Placard  
Tire and lOading infOrmaTiOn  
The weight of cargo should never exceed 707 kg or 1560 lb.  
see Owner’s  
manual fOr  
addiTiOnal  
Original Tire COld Tire inflaTiOn  
size  
Pressure  
4.80-12  
414 kPa, 60 Psi  
infOrmaTiOn.  
Tire and Loading Information Placard Location  
The Tire and Loading Information Placard displays the cold tire inflation pressure  
and the load limit for this vehicle. See the Tire Care section starting on the following page  
for an explanation of tire pressure and see the Vehicle Load Limit section following that for  
an explanation of load limit.  
REV 07e  
SKU 92174  
For technical questions, please call 1-800-444-3353.  
Page 17  
TIRE CARE  
Checking Tire Pressure  
note: Underinflated tires can decrease handling, stopping performance, traction, tire life,  
and load-carrying capability, in addition to causing other negative and hazardous  
effects, including tire failure. Overinflated tires are at greater risk of an impact break,  
where the tread and casing break when striking a hard edge, often opening a huge  
gash across the tread. Incorrect inflation pressure also increases tires wear rate.  
Therefore, it is important to keep tires inflated properly.  
Check all tires’ pressure at least monthly, due to the following factors:  
• Most tires naturally lose air gradually.  
• Tires can suddenly lose air if the tire strikes a pothole, curb, or other object.  
• It is usually not possible to determine underinflation of radial tires by visual in-  
spection.  
This vehicle has 60 PSI recommended cold tire inflation pressure. The term “cold”  
in this manual does not refer to the temperature outside, but it refers to the fact that a tire  
that has not been driven for a period is cooler (and therefore has lower pressure) than a  
tire that has been driven on. Tires heat up while being driven on. To check (or fill to) a  
tire’s cold inflation, the tire must have not been driven for more than a mile or two for at  
least three hours. If you check a tires pressure when it is not “cold”, the pressure will ap-  
pear higher than the actual cold tire inflation.  
steps for Maintaining Proper Tire Pressure  
1.  
Locate the recommended tire pressure on the vehicle’s tire information placard,  
certification label, or in the owner’s manual. This trailer has 60 PSI recommended  
cold tire inflation pressure.  
2.  
3.  
Measure and record the tire pressure of all tires.  
If the tire pressure is too high in any of the tires and the tires have not been driven  
for at least three hours, slowly release air by gently pressing on the tire valve stem  
with the edge of your tire gauge until you get to the correct pressure. If the vehicle  
have been driven within the past three hours and the tire pressure is too high on any  
tires, then recheck the pressure once the tires have been allowed to sit motionless  
for at least three hours.  
4.  
5.  
If the tire pressure is too low, note the difference between the measured tire pres-  
sure and the correct tire pressure. These “missing” pounds of pressure are what  
you will need to add.  
At a service station, add the missing pounds of air pressure to each tire that is  
underinflated.  
REV 07e  
SKU 92174  
For technical questions, please call 1-800-444-3353.  
Page 18  
6.  
7.  
Check all the tires to make sure they have the same air pressure.  
If the tirespressure was not measuredcold”, then the pressure should be rechecked  
with the tires cold as soon as possible.  
Tire size  
To maintain safety, only purchase new tires of the same size as the original tires.  
Look at the Tire and Loading Information Placard, the Specifications Chart in this manual,  
or the sidewall of the tire being replaced. If you have any doubt about selecting the correct  
size, consult a tire dealer.  
Tire Tread  
The tire tread provides traction that prevents your vehicle from slipping, especially  
if the road is wet or icy. Tires are unsafe and should be replaced when the tread is worn  
down to 1/16”. Measure tread depth using a tread depth indicator (not included).  
Tire Rotation  
Every 5,000 miles the left and right tires should be switched. This will cause the  
tires to wear more evenly and last longer.  
Tire Balance and Alignment  
The tires need to be balanced to prevent vibration when driving. This involves at-  
taching small weights to the rim to offset small differences in rim and tire weight. The tires  
also need to be aligned properly. Alignment is the orientation of the tires to the road surface  
and their being parallel. This helps the tires to wear evenly, and provide better traction.  
Both tire balance and alignment require specialized equipment that is not provided with  
this vehicle.  
Tire Repair  
To properly repair a punctured tire, the hole needs to be properly plugged and  
patched from the inside of the tire. Tread punctures can be repaired if they are not too  
large. Sidewall punctures should not be repaired, the tire needs to be replaced if the  
sidewall is damaged. Tires should be removed from the rim to be inspected before being  
plugged and patched. A qualified mechanic should remove the tire from the rim, perform  
the repair, and remount the tire.  
REV 07e  
SKU 92174  
For technical questions, please call 1-800-444-3353.  
Page 19  
VEHICLE LOAd LIMIT  
steps for determining Correct Load Limit  
1.  
Locate the statement “The weight of cargo should never exceed XXX pounds” on  
your vehicle’s placard.  
2.  
3.  
That figure equals the available amount of cargo and luggage load capacity.  
Determine the combined weight of luggage and cargo being loaded on the vehicle.  
That weight may not safely exceed the available cargo and luggage load capacity.  
4.  
If the trailer’s load exceeds the cargo and luggage load capacity, then the trailer  
be unsafe resulting in hazardous effects, such as: Trailer’s tires will not be able to  
maintain traction properly, and stopping distance will be increased significantly.  
REV 07e  
SKU 92174  
For technical questions, please call 1-800-444-3353.  
Page 20  
InsPECTIOn, MAInTEnAnCE, And CLEAnInG  
1.  
2.  
The following Chart serves as a basic guideline for scheduling your trailer mainte-  
nance. Maintenance may be different based on your local conditions, type of trailer,  
and frequency of trailer use.  
CAuTIOn! All maintenance, service, or repairs listed in this manual are only to  
be attempted by a qualified service technician.  
MAInTEnAnCE CHART  
After  
First 50  
Miles  
Before Before  
After  
Every 3 Every 6  
Months Months  
Yearly  
Maintenance Type  
use  
storage storage  
Coupler  
Ensure proper fit  
X
Check Lubrication  
Tongue JaCk  
X
X
X
X
Grease  
Wheels and hubs  
Check lug nut tightness  
X
X
X
X
X
X
X
Grease Bearings  
X
X
Repack Bearings  
X
Tires  
Check Pressure (60 PSI) and  
Visual Inspection  
X
X
X
X
Check tread depth  
eleCTriCal  
Check Tail and Brake Light  
Operation  
X
X
X
Check Electrical Ground  
Wiring  
REV 07e  
SKU 92174  
For technical questions, please call 1-800-444-3353.  
Page 21  
PLEAsE REAd THE FOLLOWInG CAREFuLLY  
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND  
ASSEMBLY DIAGRAM IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE  
MANUFACTURER OR DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY OF  
ANY KIND TO THE BUYER THAT HE OR SHE IS QUALIFIED TO MAKE ANY REPAIRS TO THE  
PRODUCT, ORTHAT HE OR SHE IS QUALIFIEDTO REPLACE ANY PARTS OFTHE PRODUCT.  
IN FACT, THE MANUFACTURER AND/OR DISTRIBUTOR EXPRESSLY STATES THAT ALL  
REPAIRS AND PARTS REPLACEMENTS SHOULD BE UNDERTAKEN BY CERTIFIED AND  
LICENSED TECHNICIANS, AND NOT BY THE BUYER. THE BUYER ASSUMES ALL RISK  
AND LIABILITY ARISING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR  
REPLACEMENT PARTS THERETO, OR ARISING OUT OF HIS OR HER INSTALLATION OF  
REPLACEMENT PARTS THERETO.  
PARTs LIsT  
Part  
A1  
B2  
A3  
A4  
description  
Qty.  
Part  
description  
Qty.  
Trailer Frame  
1
1
8
2
1
1
2
2
1
2
2
A12 Trailer Enclosure  
A13 Safety Chain  
1
1
2
1
1
1
2
2
2
1
Tow Bar  
Support Bar  
Rear Corner Brace  
Rear Ramp  
Axle  
A14 Fender Support Bar  
A15 Left Tail Light  
A5  
A6  
A16 Right Tail Light  
A17 License Plate Bracket  
A18 Tail Light Bracket  
A19 Side Running Light  
A20 Side Rail  
A7* Hub/Bearing/Seal/Cap  
A8  
B9  
A10 Tire w/Rim  
A11 Fender  
Trailer Spring  
Hitch Coupler  
A21 “T” Plate  
*Includes Cotter Pin, Lug nut, Flat Washer, and Castle nut.  
Hardware List  
Part  
description  
Qty.  
Part  
description  
Qty.  
Bolt (M14x80)  
Lock Nut (M14)  
Washer (M14)  
4
Pin (Ø12x95)  
2
2
sets  
1
5
Cotter Pin (Ø3x25)  
2
Bolt (M10x90)  
Lock Nut (M10)  
Washer (M10)  
1
set  
Bolt (M10x20)  
Lock Nut (M10)  
Washer (M10)  
6
42  
sets  
2
3
Bolt (M14x80)  
Nut (M14)  
Cotter Pin (Ø3x25)  
4
sets  
U-Bolt (F10)  
Lock Nut (10)  
Spring Washer  
Spring Plate  
4
8
8
2
7
8
Bolt (M12x75)  
Lock Nut (M12)  
2
sets  
note: Some parts and hardware are listed and shown for illustration purposes only, and  
are not available individually as replacement parts or hardware.  
REV 05k, 06b, 07e, 07f  
SKU 92174  
For technical questions, please call 1-800-444-3353.  
Page 22  
AssEMBLY dIAGRAM  
8
REV 06b, 07e  
SKU 92174  
For technical questions, please call 1-800-444-3353.  
Page 23  
LIMITEd 90 dAY WARRAnTY  
Harbor Freight Tools Co. makes every effort to assure that its products meet high  
quality and durability standards, and warrants to the original purchaser that this product  
is free from defects in materials and workmanship for the period of 90 days from the date  
of purchase. This warranty does not apply to damage due directly or indirectly, to misuse,  
abuse, negligence or accidents, repairs or alterations outside our facilities, criminal activity,  
improper installation, normal wear and tear, or to lack of maintenance.We shall in no event  
be liable for death, injuries to persons or property, or for incidental, contingent, special  
or consequential damages arising from the use of our product. Some states do not allow  
the exclusion or limitation of incidental or consequential damages, so the above limitation  
of exclusion may not apply to you. THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL  
OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF  
MERCHANTABILITY AND FITNESS.  
To take advantage of this warranty, the product or part must be returned to us with  
transportation charges prepaid. Proof of purchase date and an explanation of the com-  
plaint must accompany the merchandise. If our inspection verifies the defect, we will either  
repair or replace the product at our election or we may elect to refund the purchase price  
if we cannot readily and quickly provide you with a replacement. We will return repaired  
products at our expense, but if we determine there is no defect, or that the defect resulted  
from causes not within the scope of our warranty, then you must bear the cost of returning  
the product.  
This warranty gives you specific legal rights and you may also have other rights  
which vary from state to state.  
3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • (800) 444-3353  
REV 07e  
SKU 92174  
For technical questions, please call 1-800-444-3353.  
Page 24  

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